| OCOsborne Concrete & Stone CO (0243030583) | Grand River | OH | — | ◇ UNVERIFIED |
| OIOsborne INC | Mentor | OH | — | ◇ UNVERIFIED |
| OROscar Renda Contracting, INC. | Houston | TX | — | ◇ UNVERIFIED |
| OCOsceola Concrete LLC | Osceola | MO | — | ◇ UNVERIFIED |
| O0Otfl 001 Eastside Ready Mix379 | San Antonio | TX | — | ◇ UNVERIFIED |
| OLO.T.S. Logistics, LLC | Brownstown | IL | — | ◇ UNVERIFIED |
| OIOutback Inc.-oneals Yard | O'neals | CA | — | ◇ UNVERIFIED |
| OMOutback Materials | Mariposa | CA | — | ◇ UNVERIFIED |
| OMOutback Materials | Fresno | CA | — | ◇ UNVERIFIED |
| OMOutback Materials, INC. | O'neals | CA | — | ◇ UNVERIFIED |
| OROverland Ready Mixed Concrete | Strang | NE | — | ◇ UNVERIFIED |
| OROverland Ready Mixed Super 8 | Fullerton | NE | — | ◇ UNVERIFIED |
| OSOverland Sand & Gravel Mowitz | Central City | NE | — | ◇ UNVERIFIED |
| OSOverton Sand & Gravel CO | Lexington | NE | — | ◇ UNVERIFIED |
| OSOverton Sand & Gravel CO. | Riverdale | NE | — | ◇ UNVERIFIED |
| OSOverton Sand & Gravel Company | Overton | NE | — | ◇ UNVERIFIED |
| OCOwensboro Concrete CO | Owensboro | KY | — | ◇ UNVERIFIED |
| OBOwens Brothers Concrete CO | Arvada | CO | — | ◇ UNVERIFIED |
| ODOxford Division of B and B Concrete Company INC | Oxford | MS | — | ◇ UNVERIFIED |
| OSOxford Sand Company Inc, Pontotoc Plant | Pontotoc | MS | — | ◇ UNVERIFIED |
| OSOxford Sand Company Inc, Pontotoc Plant | Ecru | MS | — | ◇ UNVERIFIED |
| OBOxnard Building Materials | Oxnard | CA | — | ◇ UNVERIFIED |
| OBOzark Building Materials, LLC Plant 1 | Saint Louis | MO | — | ◇ UNVERIFIED |
| OBOzark Building Materials-plant 6 | Maryland Heights | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix | Eldon | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix CO Inc-eldon - Plant 1 | Eldon | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix CO Inc-plant #2 Osage Beach | Osage Beach | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix Company, INC. | Lebanon | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Dba Promix Concrete | Lowell | AR | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Eldon | Eldon | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix Kc - Paola, Kansas | Paola | KS | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Linn Creek | Linn Creek | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Portable Heartland Cola Facility (stormwater) | Olathe | KS | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Sunrise Beach | Sunrise Beach | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Versailles | Versailles | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix - Waynesville | Saint Robert | MO | — | ◇ UNVERIFIED |
| OROzark Ready Mix-waynesville | Waynesville | MO | — | ◇ UNVERIFIED |
| OBOzinga Bros | Forest View | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Milan | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Grant Park | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Downers Grove | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Joliet | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Watseka | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros Inc-holiday Hills Plant | Holiday Hills | IL | — | ◇ UNVERIFIED |
| OBOzinga Brothers, INC. | Alsip | IL | — | ◇ UNVERIFIED |
| OCOzinga Chicago Rmc INC | Chicago | IL | — | ◇ UNVERIFIED |
| OCOzinga Concrete | Rockford | IL | — | ◇ UNVERIFIED |
| OCOzinga Concrete Products - Hampshire | Hampshire | IL | — | ◇ UNVERIFIED |
| OCOzinga Concrete Products Huntley | Huntley | IL | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc | Dekalb | IL | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc INC | Mokena | IL | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc INC | Elgin | IL | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc INC | Blue Island | IL | — | ◇ UNVERIFIED |
| OIOzinga Illinois Rmc INC | Monee | IL | — | ◇ UNVERIFIED |
| OMOzinga - Miami Plant | Miami | FL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix | Chicago Heights | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix | Naperville | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix - 103rd St Plant | Chicago | IL | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Burlington | Burlington | WI | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete Beloit | Beloit | WI | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete Hartland | Hartland | WI | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC | Carol Stream | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC | Mchenry | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC | Aurora | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC | Cherry Valley | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete INC | Wilmington | IL | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC - Manteno | Manteno | IL | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete - Laporte | La Porte | IN | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete Plymouth | Plymouth | IN | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Kankakee | Kankakee | IL | — | ◇ UNVERIFIED |
| OROzinga Ready-mix New Carlisle | New Carlisle | IN | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Rockford | Rockford | IL | — | ◇ UNVERIFIED |
| OSOzinga South Florida INC. - Riviera Beach Plant 440 | Riviera Beach | FL | — | ◇ UNVERIFIED |
| PLP401 Longhorn | Houston | TX | — | ◇ UNVERIFIED |
| PHP455 Huntsville | Huntsville | TX | — | ◇ UNVERIFIED |
| PAPacific Aggregates | Colton | CA | — | ◇ UNVERIFIED |
| PCPacific Cement CORP | San Francisco | CA | — | ◇ UNVERIFIED |
| PIPacific Interlock Paver INC | Hollister | CA | — | ◇ UNVERIFIED |
| PSPacific Structures | Riverside | CA | — | ◇ UNVERIFIED |
| PVPahranagat Valley Site | Alamo | NV | — | ◇ UNVERIFIED |
| PVPahranagat Valley Site | Alamo | NV | — | ◇ UNVERIFIED |
| PRPai Ready Mix LLC - Ellender Facility | Sulphur | LA | — | ◇ UNVERIFIED |
| PTPalomar Transit Mix | Oceanside | CA | — | ◇ UNVERIFIED |
| PCPampa Concrete CO INC Portable | Fort Collins | CO | — | ◇ UNVERIFIED |
| PUPanels Usa, INC. | Kellogg | ID | — | ◇ UNVERIFIED |
| PCPanhandle Concrete - Port Batch Plant | Amarillo | TX | — | ◇ UNVERIFIED |
| PRParadise Ready Mix | Paradise | CA | — | ◇ UNVERIFIED |
| PUParex USA | Cleburne | TX | — | ◇ UNVERIFIED |
| PCPark City Ready-mix Concrete | Park City | UT | — | ◇ UNVERIFIED |
| PCParleys Canyon Aggregate (pit 16) | Salt Lake County | UT | — | ◇ UNVERIFIED |
| PMParmer Metered Concrete INC | Hershey | PA | — | ◇ UNVERIFIED |
| PSPar Services INC - Concrete Division | Granite City | IL | — | ◇ UNVERIFIED |
| PPaschen-newberg-foster | Chicago | IL | — | ◇ UNVERIFIED |
| PCPatriot Concrete Project Emerald Plant #1 | Spartanburg | SC | — | ◇ UNVERIFIED |
| PRPatriot Ready Mixed Concrete, LLC | Jackson | GA | — | ◇ UNVERIFIED |
| PRPatriot Ready Mixed Concrete Plant 3 | Anderson | SC | — | ◇ UNVERIFIED |
| PRPatriot Ready Mix, LLC | Farmington | MO | — | ◇ UNVERIFIED |
| PRPatterson Ready Mix Calportland Company | Patterson | CA | — | ◇ UNVERIFIED |
| PCPaulsen Corporate Headquarters | Cozad | NE | — | ◇ UNVERIFIED |